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Corn, millet and ... rooftop solar? Farm family’s newest crop shows China’s solar ascendancy (apnews.com)

submitted 2 months ago by [email protected] to c/[email protected]

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[–] [email protected] 8 points 2 months ago

Indeed, China also has projects like this for pumped water energy storage https://www.rechargenews.com/energy-transition/chinas-1bn-bet-on-gravity-to-store-massive-amounts-of-green-energy/2-1-1550122?zephr_sso_ott=FuyYMk

While some approaches like compressed air might be less efficient, the simplicity might still make them worth it. Ultimately, what matters is being able to scale the tech quickly. If you can easily build a bunch of pumped water and compressed air facilities without needing any special minerals like you do for batteries, then the fact that they don't store energy as efficiently might not really be an issue.